In question is the line “I replace it with another one,” which many claim to have heard as “Cause she’s pregnant with another one.”

Check out the Instagram video below, which has been the key piece of evidence for the theory thus far.

If the rumors are true, it would mean that little Blue Ivy, 2, will become a big sister in 2015.

And in case that video isn’t clear enough for you, don’t fret. HBO was filming the whole thing for its upcoming concert special featuring Bey and Jay. That is set to air next weekend on Saturday, September 20th.